Weatherization Manual Policies and Procedures Supporting Documents for United States Department of Energy (doe) United States Department of Health and Human Services (hhs) Bonneville Power Administration



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Policy 5.5.7 FUEL SWITCHING

  • A. Policy


    1. Commerce does not permit the general practice of non-renewable fuel switching when replacing heating systems and hot water tanks.

      1. Local agencies must notify Commerce in writing (email acceptable) if they intend to switch fuels as part of their weatherization services using Commerce funds.

      2. Local agencies may switch fuels under the following conditions:

        1. Energy efficiency if the total cost is justified using an evaluation of cost-effectiveness where the Savings to Investment Ratio (SIR) is 1.0 or greater.

        2. Client health and safety.

    1. The switched-fuel unit cannot exceed the cost of replacement using the existing fuel unless the difference comes from sources other than Commerce.

    2. When switching from electric to oil or gas, all costs associated with the installation of a gas heating system or water heater, and all required elements of the new heating system (providing a new supply line, flue, chimney, ducts), must be considered as part of the total cost.

    1. Allowable Costs

    2. Switching fuel is an allowable cost under HHS and MM funds with prior Commerce written notification. Unless health and safety related, fuel switching must be included in the SIR calculation of each fund source. See Chapter 6, Allowable Costs, for allowable expenditures.


    3. B. Procedure


    1. Programmatic

      1. Submit written notification (email acceptable) to assigned Commerce field representative. Include supporting documentation if health and safety related.

      2. Client files must include the following documentation:

        1. Copy of written notification submitted to Commerce.

        2. A complete cost analysis justifying the work, including verification the installed measure has an SIR of 1.0 or greater if it is based on energy efficiency.

        3. Justification if health and safety-related.

        4. All necessary measure-specific justification.

      3. See Chapter 6, Allowable Costs.

    2. Required Installation Standards & Materials Specifications

    1. Not applicable.



    2. POLICY 5.5.8 THERMOSTATS

    3. A. Policy

    1. Installation of a thermostat or replacement of an existing thermostat is allowable.

    2. Determining type of thermostat to install: Contractor shall determine if a standard or a programmable thermostat should be installed, and install the appropriate thermostat. All thermostats shall have a dead-band range of less than two degrees. To meet this requirement bi-metal, line-volt thermostats shall have third party verification

      1. Operating instructions for programmable thermostats

    1. The Local Agency shall ensure that the dwelling unit occupants fully understand the benefits of a programmable thermostat and can demonstrate how to program the thermostat for optimal use, and how to change the back-up battery.

    1. Thermostat power source: Thermostats shall be source powered. Programmable thermostats shall also have a battery backup.

    2. Required thermostat features: Thermostats shall be digital, have a built in anti-short-cycle feature and include a positive on-off switch that is easily accessible. Programmable thermostats shall also have a 7-day cycle, or a 5 day-2 day cycle, a set-back capability of at least 10 degrees, and provide at least 4 program periods per day.

    3. Placement: The top of the thermostat shall be 60 inches from the floor. When an occupant uses a wheelchair, thermostat top shall be 48 inches from floor.

    4. Thermostats for heat pump systems: Thermostats used with heat pump systems shall be designed so that temperature pick-up is accomplished by using heat pumping as much as possible, and electric resistance elements only when necessary.



    1. Effective Date: July 2016 Page 1 of 2

    2. Weatherization Policy

    3. See also:

    4. 10 CFR 440.18 Allowable expenditures

    5. Appendix A - 10 CFR 440, Standards for Weatherization Materials

    6. Replaces: Policy 5.5.9 – April 2009 DOE Program Guidance

    7. Policy 5.5.9 Renewable Energy Systems

    1. Section 206 of the Energy Policy Act of 2005 (EPACT 2005) amended the Energy Conservation and Production Act (42 U.S.C. 6861 et seq.) to clarify that assistance under Department of Energy’s (DOE) Weatherization Assistance Program for low-income persons may be provided for renewable energy systems and to provide definitions and criteria to be used in assessing eligibility. DOE amended their Final Rule, 10 CFR 440, to codify the EPACT provisions.

    2. EPACT 2005 set a ceiling per dwelling for such assistance, subject to annual adjustments as provided in the statute.

      1. These funds are not in addition to the current average cost per unit. The maximum represents the cumulative total average expenditures allowable for labor, materials, and related matters per unit.

      2. See annual adjustments in Section 3.1 of the annual Program Year 20YY Weatherization Grant Guidance Weatherization Program Notice (numbered YY-01). See Subsection 3.1.1 Adjusted Average Cost per Dwelling Unit for guidance on how to apply the average ceilings on DOE Weatherization funds for units using renewable energy systems.

    1. EPACT 2005 requires DOE to establish a procedure under which a manufacturer of a technology or system may request the Secretary of Energy to certify the technology or system as an eligible renewable energy system. Approved renewable energy systems will be listed in Appendix A - 10 CFR 440, Standards for Weatherization Materials.

    2. Local agencies must verify installed renewable energy system measures have an SIR of 1.0 or greater as determined by TREAT. Client files must include SIR verification and all necessary measure-specific justification.

    1. Wx Policy 5.5.9 Rewnewable Energy Systems Page 2 of 2

    2. Allowable Costs

    3. Approved renewable energy systems are an allowable cost under DOE funds. Policies for HHS, BPA, and MM funds will be determined.

    4. Specific fund source limitations or allowances are as follows:

    5. BPA: Units must be electrically heated in BPA service territory.

    6. DOE: Approved renewable energy systems will be listed in Appendix A - 10 CFR 440, Standards for Weatherization Materials. Solar Water Heating Devices which conform to SRCC (Solar Rating and Certification Corporation) OG 300 are an example of an approved renewable energy system.


    1. TOC

    2. CHAPTER 5 PROVIDING WEATHERIZATION SERVICES


    3. Section 5.6 Ventilation Ducts

    4. Policy 5.6.1 Heating and Cooling Ducts

    5. Policy 5.6.2 Mechanical Ventilation Ducts

    6. Policy 5.6.3 Dryer Ducts



    7. Effective Date: July 2017 Page 1 of 3

    8. Weatherization Policy

    9. See also:

    10. Policy 5.2.3-SF, Diagnostic Testing

    11. Exhibit 5.S10, Standards for Weatherization Material Specifications.

    12. Duct Leakage Affidavit (Existing Construction)

    13. Variance #17 – SWS 5.3003.3a,c-g

    14. Replaces: Policy 5.6.1 – July 2016 Variance #26 – SWS 3.1601.3a and 4a, 6.6002.1c. 6.6102.1c

    15. POLICY 5.6.1 heating and Cooling Ducts

    1. Insulating and Sealing Ducts: When ducts are insulated or sealed they must meet the requirements detailed in this policy.

    1. Variance #17: DOE granted a variance from SWS Section 5.3003.3 Evaluating Air Flow allowing: WA Standard which requires a client interview, confirmation of flow at each register, measurement of heat rise, pressure pan, and room pressures. Unless duct systems are missing or destroyed and require repair or replace, WA will air seal but not resize ducts.

    1. Surveying, Inspecting, and Testing Ducts: The Local Agency must conduct diagnostic testing and visually inspect all accessible ducting in the heat distribution system including the plenum, trunk and branch lines. Refer to Policy 5.2.3, Diagnostic Testing.

    1. Pressure pan testing required: Pressure pan testing of duct systems is required.

    1. Exceptions:

    1. The Local Agency may elect to have ducts tested using a duct testing device and the associated procedures outlined by the manufacturer as an alternative to pressure pan testing.

    2. The entire distribution system is located within the envelope's conditioned space.

    1. Dominant duct leak test required: Dominant duct leak test is required.

    2. Duct Testing Required when Replacing Air Handler: Total leakage or leakage to outside duct testing (eg Duct Tester, Duct Blaster) is required for any newly installed furnace. Fill out WSU Duct leakage affidavit form and post on panel with a copy in the client file.

    1. Using Materials: Materials used for replacement, repair, and sealing of ducts must be approved and listed in Exhibit 5.S10, Standards for Weatherization Materials.

    1. Wx Policy 5.6.1 Heating and Cooling Ducts Page 2 of 3

    1. Repairing or Replacing Ducts: The Local Agency or Subcontractor must reconnect all serviceable ductwork found disconnected from boots, trunks, or plenums. Method used for reconnection must be permanent and appropriate to the materials being connected. All ductwork that is torn, crushed, or severely deteriorated must be replaced or repaired.

    2. Sealing Ducts:

    1. When determined necessary by diagnostic testing and visual inspection, leakage in ducts will be reduced to lowest practical level. All the following accessible ducts both inside and outside envelope must be sealed to provide permanent, airtight connections using mastic, mastic and fiber mesh, or aluminum butyl tape:

    1. Connections to the air handler cabinet and plenums

    2. Ductwork-to-ductwork connections

    3. Elbows, holes, joints, and seams, including lateral seams

    4. Gaps:

    1. Small gaps, seams, cracks, joints, holes, and penetrations less than ¼” must be sealed with fiberglass mesh and mastic, when they within 10 feet from air handler.

    1. Exception: Mastic alone will be acceptable for holes less than ¼” that are more than 10 feet from air handler.

    1. Medium gaps, seams, cracks, joints, holes, and penetrations between ¼” and ¾” must be backed using temporary tape (e.g. foil tape) as a support prior to sealing. Then they must be sealed with fiberglass mesh and mastic.

    2. Large gaps, seams, cracks, joints, holes, and penetrations greater than ¾” must be repaired using rigid duct material. Fiberglass mesh and mastic will overlap repair joint by at least 1” on all sides.

    1. Timing: Ducts must be sealed prior to insulating.

    1. Insulating Ducts: All heating and cooling ducts located outside the heated envelope of the dwelling unit must be insulated to a minimum of R-8 and have an attached vapor retarder.

    2. Flex duct requirements:

    1. Flex duct, existing or installed, in unconditioned spaces must be insulated to a minimum, effective R-8 or buried under attic insulation, whichever is greater.

    2. Flex ducts must have an attached vapor retarder. Using a tape approved by the manufacturer, all seams and connection of the dust insulation will be taped.

    1. Wx Policy 5.6.1 Heating and Cooling Ducts Page 3 of 3

    1. Flex duct must be of the proper length for connection between two points without excessive bends or sag.

    2. Horizontal and vertical runs of flex duct must be supported using nylon, plastic, or metal strapping having a minimum width of ½ inch. Support strapping or hangers must not compress the insulation.

    3. Support strapping or hangers must be installed within 1 foot of a joint or connection with a maximum of 4 feet between supports.

    4. Flex duct must not be installed in a manner allowing direct contact with the ground.

    5. Flex duct must be connected to metal collars or boots. The inner layer of the flex must be secured using a compression strap. The outer layer of insulation must also be secured using a compression strap.

    1. Metal duct:

    1. Metal duct, existing or installed, in unconditioned spaces must be insulated to a minimum, effective R-8 or buried under attic insulation, whichever is greater.

    2. Metal ducts must have an attached vapor retarder. Using a tape approved by the manufacturer, all seams and connection of the dust insulation will be taped.

    3. Metal ducts must be of proper length without unnecessary elbows or changes in direction.

    4. Sections must be securely connected to each other using a minimum of 3 screws for round ducts and 4 for rectangular.

    5. Insulation must be permanently secured with rot and stretch proof twine or rust‑proof wire, without unduly compressing the insulation.

    6. Horizontal and vertical duct runs must be supported using nylon, plastic, or metal strapping having a minimum width of ½ inch. Support strapping or hangers must not unduly compress the insulation.

    7. Support strapping or hangers must be installed within 1 foot of a joint or connection with a maximum of 4 feet between supports.

    8. Metal ducts must not be installed in a manner allowing direct contact with the ground.

    1. Variance #26: DOE granted a variance from SWS Section 3.1601.3a, 3.1601.4a, 6.6002.1c, and 6.6102.1c Duct Support allowing: Duct support strapping of nylon, plastic, or metal (1/2” or wider) for all ducts.

    1. Rigid fiberglass duct board: Rigid fiberglass duct board must not be used to fabricate ducts.

    2. Perimeter wall insulation: Where perimeter insulation, R-10 or greater, has been installed on the walls surrounding a basement or sealed crawlspace containing heating or cooling ducts, the ducts must not be insulated unless a SIR greater than 1 is demonstrated.

    1. Effective Date: July 2016 Page 1 of 2

    2. Weatherization Policy

    3. See also:

    4. Replaces: Policy 5.6.2 – July 2015 Variance #26 – SWS 3.1601.3a and 4a, 6.6002.1c. 6.6102.1c

    5. POLICY 5.6.2 MECHANICAL VENTILATION DUCTS (Exhaust Venting)

    1. Ducting Mechanical Ventilation: All mechanical ventilation fan exhaust ducting (whole building and local) must comply with the following:

    1. Extend directly to the outside of the structure (preferably through a vertical surface, rather than through the roof).

    2. All exhaust fans must be equipped with a back draft damper located at either the fan outlet or the vent termination.

    1. Exception: Exhaust fans designed and wired to operate continuously do not require a damper.

    1. Termination cap for exhaust fan must be screened (minimum opening size ¼”; maximum ½”) or otherwise protected from entry by leaves, pests, or other materials.

    2. Duct must connect to a collar of the termination cap. Collar must pass through the building envelope.

    3. Entire duct system, including termination cap must have at least the equivalent net free area of the fan outlet.

    4. Ducting must be constructed of rigid vent pipe material. Kitchen range hood ducts must have a smooth interior surface and must be constructed of galvanized metal, copper, or stainless steel.

    1. Exception (does NOT apply to kitchen range hood exhaust fan ducting): Where rigid vent pipe is impracticable, flex duct may be used for runs no longer than 6 feet from fan to vent cap. For runs longer than 6 feet, flex duct may be used if the duct diameter is increased an additional 50% from the fan outlet diameter. In no installation must the flex duct be allowed to loop. If running flex duct across varying heights (such as ceiling joists), the flex duct must be stretched and secured to a splint to avoid sagging and the collection of condensation.

    1. Insulated to minimum R-8 if it passes through unconditioned space.

    2. Air-tight and mechanically fastened at each joint using a minimum of three (3) screws, and taped using aluminum butyl tape, to the fan outlet and to the collar of termination cap. For metal ducting, the insert end of the duct must extend into the adjoining duct or fitting in the direction of airflow.

    1. Wx Policy 5.6.2 Mechanical Ventilation Ducts (Exhaust Venting) Page 2 of 2

    1. Supported using nylon, plastic, or metal strapping with a minimum width of ½ inch (range hood ducting must be supported with metal strapping). Support strapping or hangers must not compress the insulation. Support strapping or hangers must be installed within 1 foot of a joint or connection and a minimum of every 4 feet thereafter, or per manufacturer’s specifications.

    1. Variance #26: DOE granted a variance from SWS Section 3.1601.3a, 3.1601.4a, 6.6002.1c, and 6.6102.1c Duct Support allowing: Duct support strapping of nylon, plastic, or metal (1/2” or wider) for all ducts.

    1. Outdoor air inlets: When outdoor air inlets for individual rooms are installed, local agencies must:

    1. Have a controllable and secure opening.

    2. Be sleeved and flashed or otherwise designed so as not to compromise the properties of the wall or window in which they are placed.

    3. Be screened (1/2” screen minimum) or otherwise protected to prevent entry of leaves, debris, or pests.

    4. Not be located within ten (10) feet of hazardous or unsanitary locations.



    1. Effective Date: July 2016 Page 1 of 2

    2. Weatherization Policy

    3. See also:

    4. Replaces: Policy 5.6.3 – July 2015 Variance #26 – SWS 3.1601.3a and 4a, 6.6002.1c. 6.6102.1c

    5. POLICY 5.6.3 Dryer Ducts (Dryer Vent Pipe)

    1. Dryer ducting: Clothes dryer ducting installed shall comply with the following:

    1. Extend directly to the outside of the structure.

    2. Vent shall terminate in a non-screened vent cap with a damper. The exhaust duct shall terminate not less than 3 feet in any direction from openings into the building.

    3. Have a smooth interior finish and shall be constructed of metal a minimum 0.016 inch (0.4 mm) thick. The exhaust duct size shall be 4 inches (102 mm) nominal in diameter.

    4. The insert end of the duct shall extend into the adjoining duct or fitting in the direction of airflow. Screws shall not be used to connect dryer ducting.

    5. Not exceed 35 feet in length from dryer location to outlet terminal. The maximum length shall be reduced two and one-half (2.5) feet for every 45 degree elbow and five (5) feet for each 90 degree elbow. One foot of flex duct is equal to two feet of smooth duct pipe.

    6. Both vertical and horizontal runs shall be supported using nylon, plastic, or metal strapping with a minimum width of ½ inch. Support strapping or hangers shall be installed within one (1) foot of a joint or connection and a maximum of every four (4) feet thereafter.

    1. Variance #26: DOE granted a variance from SWS Section 3.1601.3a, 3.1601.4a, 6.6002.1c, and 6.6102.1c Duct Support allowing: Duct support strapping of nylon, plastic, or metal (1/2” or wider) for all ducts.

    1. Horizontal runs shall be sloped downward toward the vent discharge.

    2. Dryer ducts located in unconditioned space shall be insulated to a minimum R-8.

    3. UL listed foil type or semi-rigid sheet metal to rigid metal will be fastened with clamp.

    4. Dryer ducts shall be sealed.

    1. Wx Policy 5.6.3 Dryer Ducts (Dryer Vent Pipe) Page 2 of 2

    1. Dryer transition duct: The dryer transition duct is the ducting between the dryer and the point at which it goes through the wall, floor, or ceiling and leaves the vicinity of the dryer. This ducting shall be listed and labeled in accordance with UL 2158A. The transition duct shall not exceed eight feet in length and be long enough to allow for moving the dryer away from the wall, but not allow excess bending and kinking that can trap lint and water in the ducting. The transition ducting is not meant to pass through a wall, floor, or ceiling. The transition duct shall connect to a smooth metal duct or a metal collar where it penetrates the ceiling, wall, or floor.


    1. TOC

    2. CHAPTER 5 PROVIDING WEATHERIZATION SERVICES


    3. Section 5.7 Baseload

    4. Policy 5.7.1 Water Heaters

    5. Policy 5.7.2 Water Pipe

    6. Policy 5.7.3 Refrigerator Replacement

    7. Policy 5.7.4 Energy-Efficient Lighting



    8. Effective Date: July 2016 Page 1 of 3

    9. Weatherization Policy

    10. See also:

    11. RCW 59.18.060

    12. Exhibit 5.S8, Safety Label for Domestic Water Heaters

    13. Variance #24 – SWS Section 7.8102.1a

    14. Variance #25 – SWS Section 7.8103.1d

    15. Replaces: Policy 5.7.1 – July 2015 Variance #27 – SWS 7.8102.2d

    16. POLICY 5.7.1 WATER HEATERS

    1. Repairing Water Heaters: Local agencies are obliged to consider repairing water heaters, including replacement of elements, wiring, and thermostats.

      1. Local agencies may replace a water heater if the cost of repair exceeds the cost of replacement or if the broken water heater is more than 10 years old.

      2. When a hot water heater is not repairable, local agencies may replace it with an energy efficient model with the lowest installed cost.

    2. Replacing Water Heaters: Local agencies may replace water heaters under one of the following conditions:

      1. Energy efficiency if the total cost is justified using an evaluation of cost-effectiveness where the Savings to Investment Ratio (SIR) is 1.0 or greater.

      2. Client health and safety.

    1. Variance #24: DOE granted a variance from SWS Section 7.8102.1a Water Heater Replacement (Direct or Power Vented allowed: Direct or power vented Energy Star qualified or EF>= 0.58 are required for combustion based water heater replacements. Variance allows atmospherically vented water heaters in un-conditioned space if passes all required combustion safety tests.

    2. Variance #25: DOE granted a variance from SWS Section 7.8103.1d DHW Expansion Tank & Backflow Prevention (New Install Only) allowing: Expansion tanks and back flow prevention are required on new Water Heater installation, only.

    1. Inspecting and Testing Water Heaters: Local agencies must inspect and test the system(s) in each dwelling unit for safe operation prior to delivering weatherization services.

    1. Test all combustion systems for safety pre- and post-weatherization work.

    1. Replacing Water Heaters in Rental Units: Replacement of systems in rental units, other than low-income owned, also requires the following:

      1. Local agency must inform the owner of their legal responsibilities and liabilities under RCW 59.18.060.

    1. Wx Policy 5.7.1 Water Heaters Page 2 of 3

      1. Local agency must work with the owner to make a contribution of at least 50 percent, since a new system is a capital improvement to the property.

        1. Owner may make either a cash or in-kind contribution. Contributions other than cash must benefit the client directly or the weatherization program.

        2. If owners refuse to participate, local agency options include the following:

          1. Defer project.

          2. Alternative financing.

          3. Negotiate extended rent freeze beyond normal property owner/agency agreement.

          4. File a covenant in lieu of the normal property owner/agency agreement assuring continued occupancy by low-income tenants for at least five years.

          5. Negotiate a combination of the above to allow weatherization funds to cover more than 50 percent of the cost of the system replacement.

    1. Insulating Water Heaters: Water heaters in unconditioned spaces must be insulated.

    1. Exceptions: Do not add external fiberglass insulation if any of the following conditions exist and cannot be corrected with available funding:

    1. Internal insulation is R-10 or greater.

    2. There is evidence of leaks or other impending failure.

    3. External insulation is prohibited by the manufacturer.

    4. There is evidence of improper combustion for a gas-fired unit.

    5. Vent pipe or draft hood is improperly installed.

    6. There is improper or inadequate venting for a gas fired unit.

    7. Combustion air supply is improper or inadequate.

    8. A temperature and pressure relief valve is not present or is located more than 6 inches from the tank or is capped or plugged.

    9. Hazardous or improper electrical connections are present.

    10. Thermostat cover plate is not present.

    11. Burner access doors are not present.

    12. Adequate clearances cannot be maintained.

    13. Water Heaters within living space

    1. Wx Policy 5.7.1 Water Heaters Page 3 of 3

    1. Insulating Wrap R-value: Insulating wraps must have an insulation value of R-11 or greater.

    1. Exception: If clearance does not permit R-11, insulate to the maximum the space allows.

    1. Providing Minimum Clearances for Heat Producing Appliances and Venting: Clearances between the surface of the wrap or pipe insulation and adjacent heat producing appliances, including vent connectors, must be maintained according to state and local codes.

    2. Meeting Clearances within Enclosed Spaces: Water heaters must meet the manufacturer's clearance requirements when installed in closets and enclosed spaces.

    3. Setting Temperature: Prior to the installation of an insulating wrap, the hot water discharge temperature must be set not to exceed 120°F or as prescribed by local code.

    1. Exception: If the client requests a different temperature setting the Local Agency must document this request in writing in the client file.

    1. Installing Wraps: Insulation wraps must be installed according to the methods and procedures in the Field Guide.

    2. Labelling Wrapped Water Heaters: A Commerce approved safety label must be installed on the insulating wrap in a visible location. For a sample label with the information required on the label See Exhibit 5.S8, Safety Label for Domestic Water Heaters.

    3. Installing an Emergency Drain Pan and Drain Line: An emergency drain pan will be installed with sides that extend a minimum of 2.5” above floor if leakage would cause damage to the home and in accordance with P2801.5 of the 2012 IRC. A ¾” drain line or larger will be connected to tapping on pan and terminated in accordance with P2801.5.2 of the 2012 IRC.

    1. Variance #27: DOE granted a variance from SWS Section 7.8102.2d Water Heater Drain Pan allowing: 2.5” deep emergency water heater drain pan.



    2. POLICY 5.7.2 WATER PIPE

    3. A. Policy

    1. The Local Agency shall install insulation on accessible hot and cold water lines.

    1. Exceptions: Water pipes shall not be insulated if any of these conditions are present:

    1. Water pipes or valves are leaking or are improperly supported.

    2. When electric heat tape is being used to prevent freezing of pipes.

    1. Pipe insulation R-value: Water pipe insulation installed by the Local Agency shall have a minimum effective insulation value of R-3.

      1. Insulate the first 6 feet of both cold-water inlet and hot-water outlet pipes beginning at the water heater tank.

      2. Insulate hot and cold water distribution pipe in unconditioned space.

    2. Installation standard for foam pipe insulation: Insulation shall be installed to these standards:

    1. Insulation with a lengthwise slit shall be positioned on horizontal pipe so that the slit is on the bottom side of the pipe.

    2. Insulation shall be sized to fit and firmly secured to the pipe. Products that are glued shall use the manufacturer's recommended adhesive and all slits in the material shall be sealed.

    3. Products that are not glued shall be held in place with elasticized tape, wire, or plastic ties.

    4. Elasticized tape shall be applied every nine (9) inches on center, and around each joint between separate pieces of material.

    5. If ties are used, they must be made of either galvanized wire or non-slipping plastic.

    6. The ties shall be spaced at one inch from each end of the material and thereafter every nine (9) inches on center.

    7. Other techniques for attaching pipe insulation may be acceptable if approved in writing by Commerce.

    8. Insulation material shall be cut and folded, or otherwise molded, to completely cover all elbows or curved pipe without compressing the insulation or allowing gaps to occur in the insulation.

    1. Installation standard for fiberglass: If fiberglass batts are used, then the batts shall be at least R-7 when flat. After installation a minimum of R-3 shall be present on any water pipes, including piping for refrigerator ice makers that are not enclosed within the floor insulation. The insulation shall be permanently attached to the pipe with wire, cable ties, twine, strapping tape, or by other approved methods. Waste or drain pipes are excluded from this insulation requirement. Water pipes that are protected by (enclosed within) installed floor insulation are not required to be separately wrapped.

    2. Insulation of pipes exposed to weather: If insulation is installed on pipes exposed to the weather, then such insulation shall be resistant to degradation from moisture, ultraviolet light, and extremes in temperature, or a jacket or facing shall be installed that protects the insulation from these conditions.



    1. Effective Date: July 2017 Page 1 of 3

    2. Weatherization Policy

    3. See also:

    4. Exhibit 5.1.6A, Economic Analysis of Refrigerator Replacement

    5. Refrigerator and Freezer Energy Rating Database

    6. Replaces: Policy 5.7.3 – July 2016 Variance #20 – SWS Section 7.8001.1a

    7. Policy 5.7.3 REFRIGERATOR REPLACEMENT

    1. Local agencies may replace refrigerators with weatherization funding when the demonstrated savings to investment ratio (SIR) is 1.0 or greater. Freezer-only unit replacements are not allowed.

      1. Local agencies must use Commerce approved methods to determine the SIR. These methods include:

        1. TREAT (Targeted Residential Energy Analysis Tool)

        2. Weatherization program on-line tool: Refrigerator Replacement Analysis Tool on the Commerce Weatherization page. See Exhibit 5.1.6A, Economic Analysis of Refrigerator Replacement.

      2. Local agency shall use one of the following to determine the energy usage of the existing refrigerator:

        1. Data logging of existing refrigerator: use a minimum of 2 hours of data logging information, or

        2. Database: Refrigerator and Freezer Energy Rating Database

      3. Leveraged funds can be used to bring the SIR of a marginally cost-effective measure to 1.0 or greater.

      4. All units in an eligible multi-unit project may receive a replacement refrigerator if the SIR is 1.0 or greater.

    2. Document cost-effectiveness: The Local Agency shall document in the client file that the replacement is cost-effective with an SIR of 1.0 or greater, and the method used to determine the SIR.

    1. Wx Policy 5.7.3 Refrigerator Replacement Page 2 of 3

    1. Replacement refrigerators: Replacement refrigerators must meet the following criteria:

      1. EnergyStar or better energy efficiency. A non-EnergyStar refrigerator may be installed provided the SIR for the non-EnergyStar model is demonstrated to be higher than the SIR for the EnergyStar model.

    1. Variance #20: DOE granted a variance from SWS Section 7.8001.1a Refrigerator & Freezer Replacement allowing: WA allows Energy Star rated or equivalent energy use Refrigerator replacements. DOE prohibits Freezer replacements.

      1. Top-mount freezer (two door models).

      2. Models with no extra features such as door ice, through door water dispensing, or automatic icemakers.

      3. Automatic defrost

      4. Based on the size and needs of the family.

    1. Refrigerator sizing: The smallest size refrigerator that is practical for each household shall be installed. The following guidelines shall be used:

    1. Family of 1 - 2

    1. 15 cubic foot

    1. Family of 3 - 4

    1. 18 cubic foot

    1. Family of 5 or more

    1. 21 cubic foot



    1. Client agreement: Residents must agree to the removal of the old refrigerator and all non-functioning, unused, or underused refrigerators by the local agency. The Local Agency and client shall have a written agreement that is documented in the client file that the refrigerator being replaced will be removed by the Local Agency. Additional refrigerators or freezers, whether working or not, may be removed upon written agreement between the owner and the Local Agency.

    2. Establishment of ownership: If the refrigerator is installed in a rental unit, the ownership of the existing and the replacement refrigerator shall be established, and documented in the client file. This shall be done before the replacement refrigerator is installed.

    3. Disposal of removed refrigerators The Local Agency shall remove the old refrigerator from the property and dispose of it properly per Section 608 of the 1990 Clean Air Act, as amended by 40 CFR 82, Subpart F, 1995 at an EPA-approved disposal site that reclaims the refrigerant. The client file or central vendor file will contain documentation of the proper disposal from the disposal facility, or a statement signed by a commercial vendor indicating that the vendor will dispose of the refrigerator at an approved disposal site that reclaims the refrigerant.

    1. Wx Policy 5.7.3 Refrigerator Replacement Page 3 of 3

    2. Allowable Costs

    3. Refrigerator replacement, including costs associated with CFC disposal, is an allowable cost under DOE, HHS, BPA, and MM funds. Refrigerator replacement must be included in the SIR calculation for all fund sources and in the DOE per home expenditure average. See Chapter 6, Allowable Costs, for allowable expenditures.

    4. Specific fund source limitations or allowances are as follows:

    5. BPA: Funds will cover 100 percent of the refrigerator cost. Funds may be used for non-electrically heated homes in BPA service territory.


    6. B. Procedure


    1. Programmatic

      1. Client files must include the following documentation:

        1. Verification installed measure has an SIR of 1.0 or greater using proven methods.

        2. All necessary measure-specific justification.

        3. Client approval.

        4. Ownership status of the replaced refrigerator.

        5. Copies of the manufacturer’s warranty and client’s signature indicating receipt of original warranty.

        6. Refrigerator disposal method.

        7. Reclaimed refrigerant disposal method.

      2. See Exhibit 5.1.6A, Economic Analysis of Refrigerator Replacement

      3. See Chapter 6, Allowable Costs

      4. See Chapter 9, Health & Safety

    2. Required Installation Standards and Materials Specifications

    1. See Field Guide, Retrofitting Washington

    2. Effective Date: July 2017 Page 1 of 3

    3. Weatherization Policy

    4. See also:

    5. Variance #22 – SWS Section 7.8003.11b

    6. Replaces: Policy 5.7.4 – July 2016 Variance #23 – SWS 7.8003.14b

    7. Policy 5.7.4 ENERGY-EFFICIENT LIGHTING

    1. Retrofit of lighting fixtures, replacement of incandescent screw-in bulbs with light emitting diode (LEDs) or compact fluorescent screw-in bulbs (CFLs), and replacement of halogen or incandescent torchiere lamps with LED or CFL torchieres are allowable weatherization measures under the following provisions:

      1. Eligible units:

        1. Owner-occupied dwellings.

        2. Rental units where tenants pay electric bills.

    1. All lighting measures installed in rental housing units must directly benefit low-income tenants.

    2. Do not install lights in locations where the building owner pays the electric bills, such as common areas or master-metered buildings except when building owner is a nonprofit organization.

      1. Retrofit of lighting fixtures: Retrofit of lighting fixtures is allowable if costs are justified with an SIR calculation of 1.0 or greater using TREAT.

        1. Type of fixtures: Fixtures that are installed shall be hard-wired fluorescent or LED fixtures that meet all of the following:

    1. UL listed.

    2. EnergyStar rated or equivalent energy use.

    3. Fully warranted for one year after the date of installation.

    4. Interior fixtures shall be with electronic ballast only.

        1. Exterior fixtures: Exterior fixtures shall be constructed of UV resistant materials and rated for installation in damp or wet locations. Magnetic ballast fixtures are allowed.

    1. Wx Policy 5.7.4 Energy-Efficient Lighting Page 2 of 3

        1. Installation requirements: Fixtures shall be installed in accordance with all applicable codes governing installation of electrical devices and shall be installed by a contractor licensed to perform this work.

    1. Variance #23: DOE granted a variance from SWS Section 7.8003.14b Fixture Replacement allowing: WA to install ENERGY STAR compliant or replacement lighting fixtures comparable in energy use and cost.

      1. Replacement lamps: Replacement of lamps is allowable if costs are justified with an SIR calculation of 1.0 or greater using the Priority List or TREAT.

        1. Types of replacement lamps: LEDs or CFLs that are installed shall be EnergyStar rated or equivalent energy use and be warranted for one year from the date of purchase.

        2. Light output: Replacement lamps must provide light output levels that meet or exceed the level of the bulbs that they are replacing.

        3. Incandescent replacement: All incandescent screw-in bulbs can be replaced with LEDs or CFLs

    1. Exceptions: Replacement lamps should not be installed if any of the following conditions exist:

    1. Socket or fixture is nonfunctional, damaged, or unsafe.

    2. Circuit is controlled by a solid-state timer.

    3. Circuit is controlled by a non-CFL compatible dimmer.

    4. Fixture is located in a storage room, closet, or other seldom used room.

    5. Fixture is controlled by an occupancy sensor.

    6. The client refuses to have LEDs or CFLs installed.

        1. Torchiere replacement: With client approval, high intensity incandescent or halogen 1200w or more shall be removed and replaced with EnergyStar rated or equivalent energy use LED or CFL torchiere lamps.

        2. Outdoor locations: Replacement lamps may be installed in outdoor locations attached to the dwelling provided they are installed in a fixture that protects the lamp from the weather.

    1. Wx Policy 5.7.4 Energy-Efficient Lighting Page 3 of 3

        1. Field testing: The installer shall test all installed replacement lamps before leaving the dwelling unit, and shall ask the client if the lighting level is adequate, if the client is available.

    1. Variance #22: DOE granted a variance from SWS Section 7.8003.11b Lamp Replacement (Kelvin) allowing: WA allows replacement lamps up to 5000 Kelvin, for anti-depressant benefit.

    1. Every effort should be made to arrange cost sharing with utilities and use utility funds first.

    2. Client Education: Local agencies must provide residents with information on the following:

      1. LED and CFL features

      2. Potential savings

      3. Proper use and care

      4. Use and replacement limitations

      5. Where to purchase replacement bulbs

      6. Proper Disposal of CFLs: CFLs contain about 4 milligrams of mercury sealed in the glass tubing of the bulb. They must be disposed of as Household Hazardous Waste (HHW) at an approved site.

        1. If the client has existing CFLs or if the Local Agency provides CFLs, the Local Agency must also give to the occupant(s) information on the proper disposal of CFLs in their area.

        2. If applicable, the Local Agency shall document in the client file that the occupant(s) received the CFL disposal information.

    1. Allowable Costs

    2. Retrofit of lighting fixtures, replacement of incandescent screw-in bulbs with light emitting diode (LEDs) or compact fluorescent screw-in bulbs (CFLs), and replacement of halogen or incandescent torchiere lamps with LED or CFL torchieres are allowable costs under DOE, HHS, BPA, and MM funds. Retrofit of fixtures and replacement of halogen or incandescent torchiere lamps with LED or CFL torchieres must be included in the SIR calculation for all fund sources and in the DOE per home expenditure average. See Chapter 6, Allowable Costs, for allowable expenditures.

    3. Specific fund source limitations or allowances are as follows:

    4. BPA: Funds may be used for non-electrically heated homes in BPA service territory.
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